Lead QA Engineer — Automate & Validate AI Platform

StackAI; Town Of Cambridge; On-site; AUD 171,000 - 242,000; Full time

Job summary

Stack AI is seeking a hands-on QA Engineer to join our fast-moving engineering team in San Francisco. You’ll design and execute tests across web, API, and backend, and help shape our automated QA roadmap.

You’ll partner with product and engineering to build reliable, scalable software, contribute to CI/CD, and improve observability. The ideal candidate has 2–4 years of QA experience and a strong Python/JS testing toolkit.

Qualifications

• 2-4 years of experience in QA, Test Automation, or Software Testing.
• Must be proficient in Python
• Strong familiarity with JavaScript/TypeScript (Cypress, Playwright, or Jest) and Python-based testing frameworks (PyTest, unittest).
• Experience testing APIs (REST/GraphQL) and web applications end-to-end.
• Solid understanding of software lifecycles, Git, and CI/CD (GitHub Actions, Render, or similar).
• Strong attention to detail and a love for building reliable, maintainable systems.
• Excellent communication skills and collaborative mindset, especially when working cross-functionally.

Responsibilities

• Design, write, and execute test plans for new features across web, API, and backend systems.
• Develop and maintain automated test suites (unit, integration, end-to-end) for a modern TypeScript + Python stack.
• Run regression and performance tests before major releases.
• Identify, document, and verify bugs in collaboration with engineers.
• Own and extend our test automation framework (Cypress, Playwright, or similar).
• Integrate testing into CI/CD pipelines to catch regressions early.
• Use tools like Postman or k6 to validate APIs and load behavior.
• Contribute to improving observability (logs, alerts, dashboards) to detect quality issues early.
• Partner with Product and Engineering to understand user workflows and identify high-risk areas.
• Collaborate directly with developers to debug issues and verify fixes.
• Help document and standardize QA processes for future hires.
• Participate in code reviews, release planning, and sprint retrospectives.

Skills

Python

JavaScript/TypeScript

Test automation

API testing

CI/CD

Git

Debugging

Tools

Cypress

Playwright

Jest

PyTest

Postman

k6

Job description

Stack AI is seeking a hands-on QA Engineer to join our fast-moving engineering team in San Francisco. You’ll design and execute tests across web, API, and backend, and help shape our automated QA roadmap.

You’ll partner with product and engineering to build reliable, scalable software, contribute to CI/CD, and improve observability. The ideal candidate has 2–4 years of QA experience and a strong Python/JS testing toolkit.